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SN74CBT3257C

PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 VControl input voltage range, VIN (see Notes 1 and 2) . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 VSwitch I/O vo...

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SeekIC No. : 004498713 Detail

SN74CBT3257C: PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 VControl input voltage range, VIN (see ...

SN74CBT3257C Data Sheet

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Part Number:
SN74CBT3257C
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
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  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Pinout

Connection Diagram


Specifications

Supply voltage range, VCC   . . . . . . . . . . . .  . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -0.5 V to 7 V
Control input voltage range, VIN  (see Notes 1 and 2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -0.5 V to 7 V
Switch I/O voltage range, VI/O  (see Notes 1, 2, and 3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -0.5 V to 7 V
Control input clamp current, IIK  (VIN  < 0)  . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -50 mA
I/O port clamp current, II/OK  (VI/O < 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -50 mA
ON-state switch current, II/O  (see Note 4)  . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±128 mA
Continuous current through VCC  or GND terminals. . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±100 mA 
Package thermal impedance, JA (see Note 5): DB package.. . . . . . . . . . ... . . . . . . . . . . . . . . . . . .  73°C/W
                                                                           DBQ package . . . . . . . . . . . . . . . . . . . .. . . . . . . . .  82°C/W
                                                                           DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . .. .  90°C/W
                                                                           DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . .  108°C/W
                                                                           PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39°C/W
Storage temperature range, Tstg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   -65 to 150


Description

The SN74CBT3257C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (r ), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and on B ports of the SN74CBT3257C provides protection for undershoot up to -2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.


The SN74CBT3257C is a 4-bit 1-of-2 multiplexer/demultiplexer with a single output-enable (OE) input. The select (S) input controls the data path of the multiplexer/demultiplexer. When OE is low, the multiplexer/demultiplexer is  nabled and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the multiplexer/demultiplexer is disabled and a high-impedance state exists between the A and B ports.


This SN74CBT3257C is fully specified for partial-power-down applications using Ioff . The Ioff  feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.


To ensure the high-impedance state of the SN74CBT3257C during power up or power down, OE should be tied to VCC  through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.




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